3RB2153-4FC2

Overview: Siemens 3RB2153-4FC2 Electronic Overload Relay

The Siemens 3RB2153-4FC2 is a microprocessor-based electronic overload relay designed for motor protection with a current rating range of 50 to 200 A. Classified within Size S6 and Class 5–30E, it offers adjustable overload protection, phase failure, phase unbalance, and earth fault monitoring. The device supports both contactor mounting and standalone installation with busbar connection, making it versatile for various industrial motor control applications.

Key Features

• Current Range: Adjustable within 50 to 200 A for flexible motor protection.
• Protection Classes: Class 5 to 30E for highly accurate thermal overload monitoring.
• Fault Detection: Monitors overload, phase failure, phase unbalance, and earth fault.
• Mounting Options: Can be mounted on a contactor or used standalone with busbar connection.
• Microprocessor Control: Offers precise, reliable, and programmable protection functions.
• Auxiliary Contacts: Multiple contacts for status signaling and fault indication.
• User Interface: Adjustable settings for overload and timing parameters.
• Application: Suitable for a wide range of industrial motor control and protection systems.

Technical Specs

Applications / Use Case

The Siemens 3RB2153-4FC2 overload relay is ideal for industrial motor protection, offering precise and reliable overload detection and fault monitoring, suitable for critical motor control environments.